Keysight N9923-90001 User’s Guide183Data Analysis FeaturesAll about Markers—Peak Excursion The vertical distance (dB) between the peak and thevalleys on both sides. To be considered a peak, data values must “falloff” from the peak on both sides by the excursion value. Default = 0.5dB for CAT and NA Modes; 6 dB for SA Mode.For example, the settings for the trace in the following image are:—Threshold: –10 dB—Excursion: 1 dB—Scale = 1 dB / Division.Peak A = Valid Peak (Above Threshold and Excursion Settings)Peak B = Invalid Peak (Below 1 dB Excursion Setting)Peak C = Invalid Peak (Below –10 dB Threshold Setting)Marker FunctionsMarker functions are used to change FieldFox frequency or distance settings tothose of the active marker.How to use Marker Functions— Activate the marker to move.— Thenpress Mrk ->/Tools— Then Mkr ->Then choose one of the following:— Mrk -> Center (Not available in DTF or SA mode with zero span) The centerfrequency of the measurement becomes the value of the active marker. Thefrequency span is adjusted accordingly.— Mkr -> Delay (NA mode ONLY.) The group delay value of the active markerbecomes the electrical delay setting of the trace. Learn how to set groupdelay format in “Calibration Settings” on page 46. Learn more aboutelectrical delay in “Electrical Delay” on page 49.The following applies to DTF Measurements ONLY:— More then:
